astrosetup
Back to Calculators

Image Scale Calculator

Calculate arcseconds per pixel and validate your sampling against seeing conditions.

Input Parameters

No saved cameras. Add cameras in My Setup

The physical size of one pixel on your camera sensor

No saved telescopes. Add telescopes in My Setup

The focal length of your telescope or lens

Typical atmospheric seeing at your location. 2" is average for most sites.

Enter your pixel size and focal length to calculate image scale and sampling quality.